<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<div class="layui-body">
    <div style="margin-left: 10%" id="container">
        <video id="gum" autoplay muted></video>
    <div>
    <button id="record" disabled>开始录制</button>
    <button id="upload" disabled>上传</button>
</div>

		
	</body>
</html>
<script type="text/javascript">
	var mediaSource = new MediaSource();
mediaSource.addEventListener('sourceopen', handleSourceOpen, false);
var mediaRecorder;
var recordedBlobs;
var sourceBuffer;

var gumVideo = document.querySelector('video#gum');

var recordButton = document.querySelector('button#record');
var uploadButton = document.querySelector('button#upload');
recordButton.onclick = toggleRecording;
uploadButton.onclick = upload;

// window.isSecureContext could be used for Chrome
var isSecureOrigin = location.protocol === 'https:' || location.hostname === 'localhost';
if (!isSecureOrigin) {
    alert('getUserMedia() must be run from a secure origin: HTTPS or localhost.' + '\n\nChanging protocol to HTTPS');
    location.protocol = 'HTTPS';
}

var constraints = {
    audio: true,
    video: {
      width:480,//视频宽度
      height:480,//视频高度
      frameRate:60,//每秒60帧
  }
};

function handleSuccess(stream) {
    recordButton.disabled = false;
    console.log('getUserMedia() got stream: ', stream);
    window.stream = stream;
    gumVideo.srcObject = stream;
}

function handleError(error) {
    console.log('navigator.getUserMedia error: ', error);
}

navigator.mediaDevices.getUserMedia(constraints).
    then(handleSuccess).catch(handleError);

function handleSourceOpen(event) {
    console.log('MediaSource opened');
    sourceBuffer = mediaSource.addSourceBuffer('video/webm; codecs="vp8"');
    console.log('Source buffer: ', sourceBuffer);
}


function handleDataAvailable(event) {
    if (event.data && event.data.size > 0) {
        recordedBlobs.push(event.data);
    }
}

function handleStop(event) {
    console.log('Recorder stopped: ', event);
}

function toggleRecording() {
    if (recordButton.textContent === '开始录制') {
        startRecording();
    } else {
        stopRecording();
        recordButton.textContent = '开始录制';
        uploadButton.disabled = false;
    }
}

function startRecording() {
    recordedBlobs = [];
    var options = {mimeType: 'video/webm;codecs=h264'};
    try {
        mediaRecorder = new MediaRecorder(window.stream, options);
    } catch (e) {
        console.error('Exception while creating MediaRecorder: ' + e);
        alert('Exception while creating MediaRecorder: '
        + e + '. mimeType: ' + options.mimeType);
        return;
    }
    console.log('Created MediaRecorder', mediaRecorder, 'with options', options);
    recordButton.textContent = '结束录制';
    uploadButton.disabled = true;
    mediaRecorder.onstop = handleStop;
    mediaRecorder.ondataavailable = handleDataAvailable;
    mediaRecorder.start(10); // collect 10ms of data
    console.log('MediaRecorder started', mediaRecorder);
}

function stopRecording() {
    mediaRecorder.stop();
    console.log('Recorded Blobs: ', recordedBlobs);
}

function upload(){
    //保存在本地，通过post请求
    //还可以用append方法添加一些附加信息参数为(name,value)，如下面的代码：
    var blob = new Blob(recordedBlobs, {type: 'video/mp4'});
    var formData = new FormData();
    formData.append('video', blob);
    console.log(formData);

    $.ajax({
        type: "POST",
        url: "/user/vertify",
        data: formData,
        processData:false,   //  告诉jquery不要处理发送的数据
        contentType:false,    // 告诉jquery不要设置content-Type请求头
        success:function(res){
            console.log(res);
        }
    });
}

</script>
